So for the turtle experts out there, do turtles, specifically aquatic turtles, have transmittable diseases which they can pass to their turtle friends? Google has so far only shown me stuff on shell rot and bad aquarium conditions which lead to such problems. Came across injuries and what not, but if the turtles look healthy... are they? Or like chickens, do they have hidden diseases which can emerge when stressed? I assume they do... but so far am out of luck on finding good information on them that is by experienced owners or people who know how to capitalize sentences. Thanks!